Book Cliffs, South, Utah

Highly varied terrain rising from approximately 5,500 feet on desert benches (per BLM Vernal Field Office) to around 8,500 feet on the Tavaputs Plateau ridge tops. The landscape features deeply incised canyons, sheer Cretaceous sandstone cliffs, south-facing buttes, and broad mesa tops. The Book Cliffs escarpment itself consists of layered resistant sandstone capping softer shales. Perennial streams run through many of the deep valleys, providing roughly 200 miles of riparian corridors. The southern end of the unit receives slightly more snowpack and holds higher-elevation forested habitat than the northern boundary area.

Seep Ridge Road (now paved) is the primary artery, leaving SR-88 south of Vernal and running approximately 45 miles into the unit interior before connecting to I-70 near Thompson Springs/Sego Canyon in Grand County. BLM and SITLA two-track roads branch off Seep Ridge throughout the unit. In 2025, Utah purchased 50,608 acres of School and Institutional Trust Lands Administration (SITLA) ground in northern Grand County, converting it to the Book Cliffs Roadless Wildlife Management Area (added to the existing Little Creek WMA) — significantly expanding permanent public access. The Uintah and Ouray Indian Reservation abuts the western boundary; some access routes cross tribal trust lands and require tribal permission (the tribe suspended non-member hunting and fishing permits in February 2024 due to access violations, so hunters must verify current tribal policies before crossing reservation land). Much of the southern and roadless portions require high-clearance vehicles; two spare tires are strongly recommended given remote distances from services. There are no designated wilderness areas within the South unit, but the newly acquired roadless WMA preserves the trackless character of that southern section.

Vegetation forms distinct elevation bands. Lower canyon floors and desert benches support desert shrub communities — saltbrush, shadscale, and greasewood. Mid-elevations (roughly 5,500–7,000 ft) are dominated by pinyon-juniper woodland, the most extensive cover type. Mountain shrub communities including sagebrush, mountain mahogany, serviceberry, Gambel oak, and wild crab apple occupy transitional slopes and ridges. Upper elevations feature aspen groves and Douglas fir forest, with scattered spruce-fir pockets near the plateau tops. Riparian corridors along Willow Creek, Meadow Creek, and other perennial drainages support cottonwood, willows, and dense shrubby understory.

Mule deer are widespread; the southern unit contains important wintering grounds for a significant portion of the Book Cliffs deer herd, though resident summer deer numbers are lower than the North unit. Elk numbers are substantial, with an estimated 5,300 elk across the broader Bitter Creek/South subunit and limited-entry any-bull elk permits issued at very low quotas (2–3 per weapon type). A large free-roaming bison herd occupies the Book Cliffs; the 2025 revised management plan set a total population objective of 650 wintering adult bison across the Bitter Creek, Little Creek, and South subunits combined, reflecting habitat restoration work including pond repair, guzzlers, and reseeding. Rocky Mountain bighorn sheep occupy the Rattlesnake Canyon area of the South unit with a small but healthy population sustaining 5–6 annual permits at consistent 100% harvest success. Pronghorn are present on open benches, with a 2024 population estimate of approximately 208 animals in the South unit (36:100 buck-to-doe ratio). Black bear are documented throughout the unit, particularly in the higher aspen and shrub zones, with harvest-objective (OTC) bear permits available. Mountain lions are present year-round. Sage grouse and blue grouse inhabit appropriate habitat bands. The Book Cliffs drainage also supports Colorado River cutthroat trout in perennial streams.

1. Elevation corrected to 5,500–8,500 ft per BLM Vernal Field Office documentation (draft had 4,000–9,000 ft which was unsupported). 2. SITLA purchase confirmed at 50,608 acres in northern Grand County, added to existing Little Creek WMA and renamed Book Cliffs Roadless WMA. 3. Bison management plan (2025 revision) confirmed: 650 wintering adult bison objective; new cow bison hunt approved for 2026-2027 seasons. 4. The mule deer LE hunt boundary 'Book Cliffs, South' (DB1018) is for the ANY LEGAL WEAPON season only. The archery season uses a combined 'Book Cliffs' unit (DB1011). 5. The elk LE boundary is labeled 'Book Cliffs, Bitter Creek/South' (EB-series) and does not correspond exactly to the mule deer South boundary. Only 2 LE any-bull permits were issued per weapon type in 2024. 6. Bison hunts are under the 'Book Cliffs, Little Creek/South' boundary (BI6527–BI6537). 7. Bighorn sheep November season confirmed via forum. First Utah bighorn hunt claim (1991) and 175-inch trophy claim not independently verifiable from fetched sources; retained from GoHunt/UDWR as plausible. 8. Uintah and Ouray Reservation access suspension (Feb 2024) retained; hunters must verify current tribal policy independently. 9. Tag quota for DB1018 was 46 in 2016 (100% success) and 26 in 2024 (84.6% success), reflecting statewide deer management pressures.